A system setup for measurements of acoustic field, together with the
results of 3D visualisations of acoustic energy flow are presented in
the paper. Spatial sampling of the field is performed by a Cartesian
robot. Automatization of the measurement process is achieved with the
use of a specialized control system. The method is based on measuring
the sound pressure (scalar) and particle velocity(vector) quantities.
The aim of the system is to collect data with a high precision and
repeatability. The system is employed for measurements of acoustic
energy flow in the proximity of an artificial head in an anechoic
chamber. In the measurement setup an algorithm for generation of the
probe movement path is included. The algorithm finds the optimum path of
the robot movement, taking into account a given 3D object shape present
in the measurement space. The results are presented for two cases, first
without any obstacle and the other - with an artificial head in the
sound field.